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LG Oven / Range error codes

Search 2 diagnostic guides for LG Oven / Range faults. Each guide explains what the code means, what to check, and which part may be involved.

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F3 error signals that the main control detects an open circuit in the oven thermistor circuit.

F9 code indicates the oven failed to heat up above 150°F after 5 minutes of active preheating call.